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SN74LS40N - Texas Instruments

Description: Logic Gates Dual 4-input Positive-NAND buffers 14-PDIP 0 to 70

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SN74LS40N - Texas Instruments - PCB symbol
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SN74LS40N - Texas Instruments PCB footprint - Dual-In-Line Packages - Dual-In-Line Packages - N (R-PDIP-T)
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SN74LS40N - Texas Instruments - 3D model - Dual-In-Line Packages - N (R-PDIP-T)
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SN74LS40N Details

  • Manufacturer Part Number:

    SN74LS40N

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    No

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    DIP

  • Package Description:

    DIP-14

  • Pin Count:

    14

  • HTS Code:

    8542.39.00.60

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    0

  • Family:

    LS

  • JESD-30 Code:

    R-PDIP-T14

  • Length:

    19.305 mm

  • Load Capacitance (CL):

    45 pF

  • Logic IC Type:

    NAND GATE

  • Number of Functions:

    2

  • Number of Inputs:

    4

  • Number of Terminals:

    14

  • Operating Temperature-Max:

    70 °C

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    DIP

  • Package Equivalence Code:

    DIP14,.3

  • Package Shape:

    RECTANGULAR

  • Package Style:

    IN-LINE

  • Peak Reflow Temperature (Cel):

    NOT SPECIFIED

  • Power Supply Current-Max (ICC):

    6 mA

  • Propagation Delay (tpd):

    24 ns

  • Qualification Status:

    Not Qualified

  • Schmitt Trigger:

    NO

  • Seated Height-Max:

    5.08 mm

  • Supply Voltage-Max (Vsup):

    5.25 V

  • Supply Voltage-Min (Vsup):

    4.75 V

  • Supply Voltage-Nom (Vsup):

    5 V

  • Surface Mount:

    NO

  • Technology:

    TTL

  • Temperature Grade:

    COMMERCIAL

  • Terminal Form:

    THROUGH-HOLE

  • Terminal Pitch:

    2.54 mm

  • Terminal Position:

    DUAL

  • Time@Peak Reflow Temperature-Max (s):

    NOT SPECIFIED

  • Width:

    7.62 mm

SN74LS40N Frequently Asked Questions (FAQs)

  • The maximum operating frequency of the SN74LS40N is typically around 30-40 MHz, but it can vary depending on the specific application and operating conditions.
  • The SN74LS40N is a low-power device, but it still requires proper heat dissipation to ensure reliable operation. Use a heat sink or a PCB with good thermal conductivity, and ensure good airflow around the device.
  • The SN74LS40N is a 5V device, but it can be used in a 3.3V system with some limitations. The output voltage will be reduced, and the device may not meet its specified performance. It's recommended to use a level shifter or a voltage regulator to ensure proper operation.
  • The SN74LS40N is sensitive to ESD. Use anti-static wrist straps, mats, and packaging materials when handling the device. Ensure that the device is properly grounded during assembly and testing.
  • The SN74LS40N is rated for operation up to 70°C. However, its performance may degrade at higher temperatures. If you need to operate the device in a high-temperature environment, consider using a device with a higher temperature rating or implementing thermal management techniques.

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SN74LS40N Overview

Use the download button to access the SN74LS40N schematic symbol, PCB footprint, and 3D model.
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About Texas Instruments

Texas Instruments (TI) designs and manufactures semiconductors and integrated circuits for a wide range of applications. The company's product portfolio includes analog chips, which are essential for managing power and signal functions in electronic devices, and embedded processors, which serve as the brains in various systems, enabling functionality in everything from industrial equipment to consumer electronics. TI's innovations in semiconductor technology have made it a leader in the industry.

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SN74LS40N Alternates

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Image Part Number Model
Part Image SN74LS40JDS Motorola Semiconductor Products

NAND Gate, LS Series, 2-Func, 4-Input, TTL, CDIP14
Part Image SN74LS40NS Motorola Semiconductor Products

NAND Gate, LS Series, 2-Func, 4-Input, TTL, PDIP14
Part Image M38510/30201SCX Texas Instruments

NAND Gate, LS Series, 2-Func, 4-Input, TTL, CDIP14
Part Image M38510/30201SCA Texas Instruments

NAND Gate, LS Series, 2-Func, 4-Input, TTL, CDIP14
Part Image N74LS40N YAGEO Corporation

NAND Gate, LS Series, 2-Func, 4-Input, TTL, PDIP14
For a full list of alternate parts for SN74LS40N, check out Findchips.com